Date: Tue, 28 Sep 2004 16:49:43 -0700 From: Peter Wemm <peter@wemm.org> To: freebsd-amd64@freebsd.org Subject: Re: unable to install beta6 [amd64] on Dell 2850 with 4 GB RAM,workaround Message-ID: <200409281649.43801.peter@wemm.org> In-Reply-To: <20040928133422.95A3567952@gunfright.epcdirect.co.uk> References: <20040928133422.95A3567952@gunfright.epcdirect.co.uk>
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On Tuesday 28 September 2004 06:34 am, Lawrence Farr wrote: > Does the amd64 port have support for em64t then? It is the same thing. FreeBSD never used the undocumented AMD-specific IOMMU, nor 3dnow etc. We don't do anything that assumes an integrated memory controller, nor hypertransport, etc. Aside from one silly bug, even FreeBSD-5.2 will run on intel cpus. And 5.2.1 will run on later intel cpus even without our bug being fixed. There isn't anything to "support". Since AMD wouldn't tell me any of the information about the things unique to the AMD cpus, we don't use any of them. That's why we essentially run out of the box on the intel cpus. Regarding the 4G of ram thing below.. Several people have tinkered with the auto-tuning of kernel resources based on physical ram. On our kernel, we have a finite limit of kernel private VM and simple scaling based on physical ram will quickly fill it up. I'm still not sure that its good enough. I'm just kicking myself that I didn't get to try this on a machine with 32G of ram that I dont have access to anymore. > > -----Original Message----- > > From: owner-freebsd-amd64@freebsd.org > > [mailto:owner-freebsd-amd64@freebsd.org] On Behalf Of Claus > > Guttesen Sent: 28 September 2004 14:28 > > To: freebsd-current@freebsd.org; freebsd-amd64@freebsd.org > > Subject: unable to install beta6 [amd64] on Dell 2850 with 4 > > GB RAM,workaround > > > > Apoligies for crossposting, but ... > > > > Was unable to install the amd64-port on a Dell 2850 > > with a Perc 4e/Di RAID-controller and dual Nocona at > > 3.2 GHz. The server has 4 GB RAM. As a last resort I > > removed 2 GB RAM, and I was (finally) able to install > > FreeBSD. > > > > Applies to at least beta5 and -6. > > > > I was under the impression tha the amd64-port could > > see the 4 GB RAM as a flat memory space, so it never > > occured to me, than I had to remove 2 GB in order to > > perform the installation. > > > > Putting the RAM back makes the server stop during boot > > (after it detects the CD-drive). > > > > Claus > > > > _______________________________________________ > > freebsd-amd64@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-amd64 > > To unsubscribe, send any mail to > > "freebsd-amd64-unsubscribe@freebsd.org" > > _______________________________________________ > freebsd-amd64@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-amd64 > To unsubscribe, send any mail to > "freebsd-amd64-unsubscribe@freebsd.org" -- Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com "All of this is for nothing if we don't go to the stars" - JMS/B5
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